2100414121 has 4 divisors (see below), whose sum is σ = 2261984452. Its totient is φ = 1938843792.

The previous prime is 2100414049. The next prime is 2100414131. The reversal of 2100414121 is 1214140012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1285939600 + 814474521 = 35860^2 + 28539^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100414121 - 2¹³ = 2100405929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100414095 and 2100414104.

It is not an unprimeable number, because it can be changed into a prime (2100414131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80785146 + ... + 80785171.

It is an arithmetic number, because the mean of its divisors is an integer number (565496113).

Almost surely, 2^2100414121 is an apocalyptic number.

It is an amenable number.

2100414121 is a deficient number, since it is larger than the sum of its proper divisors (161570331).

2100414121 is a wasteful number, since it uses less digits than its factorization.

2100414121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161570330.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2100414121 is about 45830.2751573673. The cubic root of 2100414121 is about 1280.6633363952.

Adding to 2100414121 its reverse (1214140012), we get a palindrome (3314554133).

The spelling of 2100414121 in words is "two billion, one hundred million, four hundred fourteen thousand, one hundred twenty-one".